While setting up a Galera cluster I noticed that the included `/usr/local/bin/wsrep_sst_mysqldump` script depends on `bash` (which I installed myself but isn't a dependency), and `ip` (which I worked around by commenting that line).
This just bit me as well. wsrep_sst_rsync requires bash as well. the error messages in the log are also entirely unhelpful about this fact.
I recall I have already provided upstream patches... Apparently more Linuxisms were added.
Can you cook up a patch? Preferably reworking to use POSIX shell #!/bin/sh